Rotating Biological Contactors

The Rotating Biological Contactor (RBC) is one of the most efficient fixed film waste-water treatment technologies and is great for secondary and /or advanced treatment in municipal and industrial applications.

The primary treatment process removes the grit and other solids through a screening process followed by a period of settlement. The RBC process involves allowing the waste-water to come in contact with a biological medium in order to remove pollutants in the waste-water before discharge of the treated waste-water. A rotating biological contactor is a type of secondary treatment process. It consists of a series of closely spaced, parallel discs mounted on a rotating shaft which is supported just above the surface of the waste water. Microorganisms grow on the surface of the discs where biological degradation of the waste-water pollutants takes place.